Nautilus Under Sea, Mexico
8.9 Fabulous - Nitrox available
- Jacuzzi / Hot Tub
- En-Suite bathrooms
“This was our second trip on this boat and we have been 100% satisfied both times.”
Highlights
The latest addition to the Nautilus fleet in Mexico, the 27m Nautilus Under Sea offers divers spectacular dive tours to the Socorro Islands in Mexico. An ex-research vessel with her claims to fame, including being the support boat for the James Bond Movie "License to Kill" and a Deep Rover mission with Dr. Silvia Earle, as well as many research and photography missions, the former Under Sea Hunter, has now re-located to Mexico. She caters to 19 guests in 9 en-suite, air-conditioned cabins. The Undersea Hunter also offers plenty of room for relaxation, with a comfortable lounge and dining area and a large sun deck with loungers.
The dive deck offers ample space for kitting up and gear storage, as well as camera set-up and personal camera storage areas. The Nautilus Under Sea offers an amazing destination - the Socorro Islands. Diving the Socorro Islands, divers will come face to face with Giant Pacific Mantas, known as the friendliest mantas in the world! Also, there are sightings of up to 10 different kinds of sharks, dolphins, whale sharks, hammerheads, and humpback whales. Nautilus Under Sea offers 6-day trips with a pick-up in San Diego and leaving from Ensenada from July to November.
Don’t miss out on these amazing trips. Book online today to start your adventure.
Choose your departure date
Included: VAT, Drinking Water, Soft drinks, Tea & Coffee, Welcome Cocktails, Full-Board Meal Plan (All meals), Snacks, Special Dinner, Diving Package, Kayaks, Stand Up Paddleboard, Cabin Towels, Complimentary Toiletries, Deck Towels.
Required Extras: Dive Insurance, National Park Fees (100-172 USD per day), Port Fees (35 USD).
Optional Extras: Travel Insurance, Gratuities, Hotel Transfer, Alcoholic Beverages, Nitrox (125 USD per trip), Private Dive Guide, Rental Gear, WiFi internet.
Book now, pay later: You can easily place your booking online. We will then hold the spaces for you and you can confirm with a payment later.
* Extra fees are shown per person.
Pay by bank transfer or online with
Drawings & Vessel Layouts
Cabin Types
Nautilus Under Sea Reviews
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- 8.9 Fabulous
- Vessel 8.4
- Crew 9.1
- Food 9.4
- Diving 9.1
- Value 8.5
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- 9.6 Exceptional
- Suzanne I
-
United States
Sea lions & whale sharks in the Sea of Cortez!
I just returned from an incredible week in the Sea of Cortez aboard the Nautilus Undersea. The diving was just incredible and definitive trip highlights were diving with the sea lions and snorkeling and swimming with the whale sharks. The boat crew were extremely friendly and worked nonstop and we had 3 amazing dive guides throughout the week. We learned quite a bit about the Sea of Cortez through various nightly presentations on board and also had fun swimming and kayaking during surface intervals. I can’t say enough about our chef as all the meals were fantastic and our hostess was so friendly and always smiling. What an incredible week!
- Recommended for
- Incredible diving with sea lions. Snorkeling and swimming with whale sharks. Very friendly crew.
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- 9.2 Superb
- Bruce P
-
Canada
Excellent
Diving trip done in August 2025. We really enjoyed our time on the Nautilus Undersea. Crew was amazing and worked very hard at making we were happy and comfortable. Safety of guest was taken very seriously. Well organized. Swimming with Whale Sharks was great. We did one night dive and it was the best night dive we have ever done so far. Boat is a bit old but we were comfortable. No complaints at all. We are already planning our next dive trip in Socorro with them.
- Recommended for
- The crew. Diving. Food.
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- 8.4 Very good
- Justin J
- United States
Great value
Was great to dive somewhere new
- Recommended for
- Diversity in sea of cortez. crew effort. lots of diving.
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- 9.2 Superb
- Anneke H
-
Germany
Great experience
Having so many mantas and went even lucky with hammerheads. The crew was always friendly and helpful
- Recommended for
- Mantas, hammerheads and great people
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- 9.2 Superb
- Natalie M
- United States
Great diving but few dives
I had a wonderful trip! The dive sites were full of life, and I was thrilled to spot my very first sea horses - three in total, including a pregnant one. The sea lions were such a highlight, endlessly playful and fun to watch. The warm water was another pleasant surprise - I didn’t even need a wetsuit! The only downside was the limited number of dives. Because the itinerary required a lot of travel north, we were only able to do 15 dives over the week. There was even a day where we couldn't get in the water at all. On other liveaboards I’ve joined, we were diving everyday and the range was closer to 23–27 dives. Since I don’t get to dive often at home, I would have loved the chance for a few more underwater hours.
- Recommended for
- Dive sites were full of life. Crew was professional and friendly. Sky at night was stunning.
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- 9.2 Superb
- Maria T
- United States
amazing crew that went above and beyond
Nautilus Under Sea is a very comfortable boat, with nice cabins, lots of storage space and very nice bathrooms in cabins. Diving deck organization was perfect, enough space for everyone, large table for cameras. The diving crew was very helpful, enthusiastic, and managed the diving part in an extremely safe and organized manner. Even when the diving conditions were difficult because of the weather, they expertly got everyone in and out of skiffs. All in all, amazing experience of diving with mantas, dolphins, Galapagos, silky sharks and other marine life, which is abundant in the Socorro.
- Recommended for
- sharks, mantas, and crew attitude
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- 8.4 Very good
- Igor I
- United States
Highly recommended trip to experience big pelagic animals
Manas, Sharks, Dolphins !!!!! Specially mantas on Boiler and Roca Partida
- Recommended for
- The crew was absolutely amazing and very friendly and accommodating. The nature itself : the best diving spot I ever visited. the way crew managed divers at different levels from very beginners to experienced marketing everybody comfortable and the diving experience enjoyable.
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- 9.6 Exceptional
- Joel G
- United States
best trip for the price
getting bumped by a great white and loosing balance in the cage.
- Recommended for
- Sharks, sharks and a sea lion chasing a small juvenile white.
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- 10 Exceptional
- Shelley S
- United States
A must do trip for divers!
Even though the water was a bit chilly this liveaboard was a trip that I’d definitely want to do again and again. The crew worked together so well. It was like we were all a family by the end of the week. The food was delicious. The mantas and the sharks and the dolphins were incredible. At times I wondered if it was all real. The hot tub on top is a nice treat.
- Recommended for
- Animal life, seclusion, crew
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- 8.4 Very good
- Richard W
- United States
White shark express
The crew went out of their way to make your experience a fantastic and memorable one. The opportunity to see multiple white sharks from up close was amazing. There was never a wait to get into a cage so you could essentially soak as long as you wanted to! Would recommend this trip and boat.
- Recommended for
- Experience white sharks up close in a controlled and safe manner for both the animals and guest, crew and service
